| Key Highlights | Ninja 400 | 390 Duke |
|---|---|---|
| Price | ₹ 5.73 Lakh | ₹ 2.99 Lakh |
| Displacement | 399 cc | 398.63 cc |
| Power | 44.38 bhp @ 10000 rpm | 45.37 bhp @ 8500 rpm |
| Mileage | 26.7 kmpl | 30 kmpl |
| Top Speed | 169 km/h | 167 km/h |
| Max Power Highest power the engine/motor can produce. | 44.38 bhp @ 10000 rpm | 45.37 bhp @ 8500 rpm |
| Max Torque The highest twisting force the engine generates, which affects acceleration and pulling power. | 37 Nm @ 8000 rpm | 39 Nm @ 6500 rpm |
| Battery Type | Maintenance Free | 12 V, 8 AH MF battery |
| Compression Ratio Compression ratio is how much the engine squeezes air-fuel before ignition. Higher ratios mean more power; lower ratios improve durability. | 11.5:1 | 12.71:1 |
| Cooling System Method used to prevent engine overheating. | Liquid Cooled | Liquid cooling with radiator |
| Emission Type Pollution level compliance of the engine. | BS6 | BS6 Phase 2 |
| Engine Type Design and working of the two-wheeler's engine. | Liquid-cooled, 4-stroke Parallel Twin | Single Cylinder Liquid Cooled, DOHC, FI Engine |
| Motor Type The type of motor used in bikes. | N/A | N/A |
| Power Modes Different performance settings in a two-wheeler. | N/A | N/A |
| Displacement Engine cylinder capacity measured in cc. | 399 | 398.63 |
| Bore Bore is the diameter of a bike’s engine cylinder. A larger bore allows more fuel-air mix, increasing power and speed. | 70 mm | 89 mm |
| Charging At Charging Station | N/A | N/A |
| Charging At Home | N/A | N/A |
| Charging Station Locater | N/A | N/A |
| Launch Control System for fast, controlled acceleration. | N/A | Yes |
| Mileage City Distance a two-wheeler covers per liter/charge in city. | 26 Km | N/A |
| No Of Cylinders | 2 | 1 |
| Peak Power Highest power a bike/scooter can produce. | 45 W | 43 W |
| Quick Shifter A feature that allows gear shifting without clutch. | N/A | Yes |
| Range The maximum distance an electric two-wheeler can travel on a full charge. | 373 Km | 450 Km |
| Stroke Stroke is the piston’s movement inside the engine cylinder. Longer strokes give more torque, shorter strokes give more speed and higher RPM. | 51 mm | 64 mm |
| Top Speed | 169 Km/h | 167 Km/h |
| Tyre Size | Front : 110/70-R17, Rear : 150/60-R17 | Front : 110/70-17, Rear : 150/60-17 |
| Ignition The system that starts the engine, usually via a key, button, or smart start. | Digital | CDI |
| Tyre Brand | N/A | N/A |
| Wheelbase The distance from the center of the front wheel to the center of the rear wheel, affecting stability, handling, and riding comfort. | 1370 mm | 1354 mm |
| Front Tyre Pressure Rider | 28 psi | N/A |
| Front Tyre Pressure Rider And Pillion | 28 psi | N/A |
| Tubless | N/A | Yes |
| Rear Brake | Disc | Disc with Floating calliper |
| Abs (Anti-locking Braking System) Prevents wheel locking during hard braking, improving control and safety. | N/A | Dual Channel |
| Front Brake | Disc | Disc with Radially mounted calliper |
| Braking Type | N/A | Dual Channel ABS |
| Ebs (Electronic Brakeforce Distribution) This electronic system uses the engine’s resistance to slow down the bike smoothly, reducing excessive brake usage and improving control. | N/A | N/A |
| Front Brake Diameter | 286 mm | 320 mm |
| Rear Brake Diameter | 193 mm | 240 mm |
| Fuel Supply | Fuel Injection | Bosch Electronic Fuel Injection |
| Fuel Capacity | 14 L | 15 L |
| Fuel Reserve | 2 L | 3 L |
| Body Type The overall design and shape of the bike (e.g., cruiser, sports, scooter). | Sports | Naked Bike |
| Frame The main structure holding the bike together. | Trellis, High-Tensile Steel | Split-Trellis Frame |
| Water Proof Rating The rating which signifies, how well the bike resists water exposure. | N/A | N/A |
| Adjustable Windshield A windshield that can be raised, lowered or tilted left/right to improve wind protection and rider comfort. | Yes | N/A |
| Dry Weight Bike’s weight without fuel and fluids. | N/A | 163 Kg |
| Ground Clearance Distance between the bike’s lowest part and the ground. | 140 mm | 183 mm |
| Height | 1120 mm | N/A |
| Kerb Weight Bike’s weight with fuel and fluids. | 168 Kg | 168.3 Kg |
| Length | 1990 mm | N/A |
| Saddle Height Distance from the ground to the seat. | 785 mm | 800 mm |
| Seat Height Distance from the ground to the seat. | N/A | 800 mm |
| Width | 710 mm | N/A |
| Charging Point A port to charge devices or the two-wheeler's battery. | N/A | Yes |
| Mobile Connectivity A feature to connect your phone to the two-wheeler's system. | N/A | Yes |
| Bluetooth Connectivity Wireless connection for calls, music, and navigation. | N/A | Yes |
| Usb Charging Port A USB slot to charge devices like phones. | N/A | Yes |
| Riding Modes Different settings (e.g., Sport, Eco, Rain) that adjust performance and power delivery. | No | Street & Rain |
| Starting The method to start the bike (e.g., electric start, kick start, or both). | Self Start Only | Electric Start |
| Engine Kill Switch A button to instantly turn off the engine for safety and convenience. | N/A | Yes |
| Pass Switch A switch to flash the high beam, signaling other vehicles while overtaking. | N/A | Yes |
| Display A screen that shows important riding information like speed, fuel, and trip details. | N/A | 5" TFT dash display |
| Instrument Console The main dashboard displaying speed, fuel, engine stats, and warnings. | Semi-Digital | Digital |
| Speedometer Displays the current speed of the bike in km/h or mph. | Analogue | Digital |
| Techometer | Analogue | Digital |
| Clock | N/A | Yes |
| Distance To Empty Indicator Estimates how far you can ride before the fuel runs out. | N/A | N/A |
| Low Battery Indicator Warns when the battery charge is low and may need recharging or replacement. | N/A | Yes |
| Service Due Indicator Reminds when the next bike servicing or maintenance is needed. | N/A | Yes |
| Clutch A device that connects and disconnects the engine from the wheels for smooth gear shifts. | Wet multi-disc, manual | Assist And Slipper Clutch |
| Gear Box | 6-Speed | 6 Speed |
| Head Light | LED | Full Split LED Headlamp |
| Battery Capacity Total energy the battery can store. | N/A | 12 V, 8 AH |
| Charging Time Zero Hundred | N/A | N/A |
| Charging Time Zero Eighty | N/A | N/A |
| Fast Charging Time Time for quick battery charging. | N/A | N/A |
| Suspension Front | Telescopic fork / 120 mm | 5-click Compression & Rebound adjustable, Open Cartridge, WP APEX USD forks, 43mm diameter |
| Suspension Rear | Swingarm / 130 mm | Adjustable WP APEX Monoshock, 5-step Rebound damping, 10-step preload adjustable |
| Stepup Seat | N/A | Yes |
| Additional Features | Multi-function LCD Screen, Forced lubrication wet sump, Caliper Front and rear - Dual piston, Rake - 24.7°, Trail - 92 mm | Ride modes - Street & Rain, Motorcycle Traction Control (MTC), Track Screen, Ride-by-wire, Quickshifter+ |
| Music Control A feature that lets you play, pause, or change music via the two-wheeler's console or connected device. | N/A | N/A |
| Motor Ip Rating A rating which indicates how well the motor is protected against dust and water. | N/A | N/A |
| Anti Theft Alarm Alerts if someone tries to steal or tamper with the bike. | N/A | Yes |
| Navigation A feature that provides turn-by-turn directions on the two-wheeler display or connected device. | N/A | Yes |
| Mobile Application A companion app to monitor bike stats, location, and settings. | N/A | Yes |
| Cruise Control A feature in which rider can set a steady speed without using the throttle. | N/A | Yes |
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